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Table of Contents
- 1 Programming fundamentals to master before learning Node JS
- 3 Final words
Programming fundamentals to master before learning Node JS
Basic data types
In programming, if, else and else if are what makes the programs versatile. With the basic control flow structure, we make Node JS apps do various tasks depending on various conditions. Depending on the condition we can execute a command or do something else entirely. Other than if/else, Node JS also makes extensive use of the switch statement in various cases. So as a programmer you should know your control flow structure to excel in Node.
Loops like the for-loop, while-loop is what helps make repeating tasks in Node JS. Often times we use loops in a helper utility function. Other times we may use it to do a server action n number of times. As a programmer, you should know your loops really well to start learning Node JS.
Advance data types, Objects, and Arrays
Composing basic programs
After learning the programming syntax you should also know how to make basic programs. Programming is building stuff and you should be confident in constructing them. After taking a programming course you should practice on your own to make a few practice projects. Being able to build things is very important because, in Node JS, we have to build out a large complex application. A large complex application is nothing more than a combination of a lot of small programs put together so don’t underestimate the power of composing.
Fixing bugs, finding a solution online
When building the backend of a Node application, you will often run into problems. You should have an open mind to find these bugs and look for solutions online. Often times the issue can be solved with a quick Google search and finding a working piece of code in Stack Overflow. It’s completely okay to do this and professional software developers always Google and search for existing solutions and snippets of code. You should build the quality of not getting frustrated and always finding the solution to your coding problems.
Promises are the modern version of callbacks and they do the same thing that callbacks do but their syntax is very easy to understand. Similar to callbacks, you can have one function do something and it will have another method attached to it when the first function completes the task. Under the hood, promises are doing the exact thing that callbacks do. In Node JS, you will encounter some modules that have callbacks and others have the new promises. As a Node developer, you should have a good grasp of both to make your life easier.
let and const
Objects are heavily used in Node JS application development. You should know the syntax and the shortcuts for working with them. In Node, objects are used for setting configurations for various NPM modules. Objects are also used for making data for your application. You should learn the modern ES6 syntax for object destructuring and prop name shortcuts.
Anonymous functions and arrow functions (lambda)
Common JS modules